Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 127
I04 EXPERIMENTAL SCIENCE. slight change in the shape of this passage seriousl) affectsthe results. The vacuum produced by this aspirator is equal to thatof the mercurial barometer, less the tension of aqueous vapor.That is to sav, when the barometer is at 30 inches, thevacuum produced by the… … Exhausting Geissler Tube. tube. It quicklv exhausts an 8 inch tube, so that the dis-charge of an induction coil will readily pass through. Byplacing a tee in the connecting pipe, the Geissler tube canbe filled with different gases. Each will exhibit its peculiarcolor as the spark passes. The vacuum…
Physics · Lantern projection · Electric apparatus and appliances
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